Answer
Total value of $\$10$ Notes =$518400 \times 10=\$5, 184, 000$
Total value of $\$20$ Notes =$3059200 \times 20= \$ 61,184,000$
Work Step by Step
From part & b, we have
Number of $\$10$ Notes =$518400$
Number of $\$20$ Notes =$3,577,600-518400=3059200$
Now,
Total value of $\$10$ Notes =$518400 \times 10=\$5, 184, 000$
Total value of $\$20$ Notes =$3059200 \times 20= \$ 61,184,000$